$ git clone -n https://src.fedoraproject.org/rpms/kollision.git /var/lib/mock/f40-build-2126156-50780/root/chroot_tmpdir/scmroot/kollision
Cloning into '/var/lib/mock/f40-build-2126156-50780/root/chroot_tmpdir/scmroot/kollision'...
$ git fetch origin 8329f81583e0ab02c988f7b1d890b2c97541a81a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kollision
 * [new ref]         8329f81583e0ab02c988f7b1d890b2c97541a81a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8329f81 24.01.85